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Fig. 17

image

Result of a simulated 2 h ALMA observation of the cloud shown in Fig. 1 where we translated the optical depth AV into an equivalent 230 GHz intensity. Upper plot: map obtained when using the 12 m array without short-spacing correction. Lower plot: map obtained after combining the 12 m array data with the data from the compact array and single-dish zero spacing. The intermediate map obtained from combining only the ALMA 12 m and ACA results is hardly distinguishable visually from the map in the lower plot, so it is not shown here.

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